了解作物氣候適宜度及產(chǎn)量差對當(dāng)前玉米生產(chǎn)具有重要意義。本文擬對湖北省主要玉米生產(chǎn)區(qū)包括,中部低丘陵平原玉米產(chǎn)區(qū)(HP),北部崗地夏玉米生產(chǎn)區(qū)(NH),西部山區(qū)玉米生產(chǎn)區(qū)(WM),進(jìn)行玉米氣候適宜度及產(chǎn)量潛力評估,以期為湖北省玉米合理生產(chǎn)布局及種植管理,了解氣候變化對湖北玉米生產(chǎn)的影響提供參考依據(jù)。本文以當(dāng)?shù)赝茝V的中熟玉米品種鄭單958為例,基于2012-2013年該品種每年8個播期試驗(yàn)獲取氣候適宜度模型中一些參數(shù),利用湖北省26個基準(zhǔn)氣象站1967-2016年氣象數(shù)據(jù),分析了不同產(chǎn)區(qū)春玉米(SpM),夏玉米(SuM),秋玉米(AuM)不同生育階段的溫度適宜度、降水適宜度、光照適宜度及綜合氣候適宜度。繼而利用Hybrid-maize模型湖北省玉米產(chǎn)量潛力及產(chǎn)量差進(jìn)行了分析。主要研究結(jié)果如下:1.湖北省不同玉米產(chǎn)區(qū)玉米不同生產(chǎn)階段氣候資源與氣象脅迫均有差異。中南部低丘平原區(qū)(3136 AAT℃.d)玉米全生育期內(nèi)的有效積溫最多。而鄂北崗地(2943AAT℃.d)及鄂西山區(qū)(2939 AAT℃.d)玉米生長期內(nèi)有效積溫在近50年內(nèi)的年際趨勢變化顯著,表明該區(qū)域玉米有效積溫有增加趨勢明顯,且播...

【文章頁數(shù)】：100 頁

【學(xué)位級別】：碩士

【文章目錄】：
中文摘要
Abstract
List of Abbreviations
1. Introduction
    1.1 Effect of Climatic resources on maize production
        1.1.1 Temperature and maize growth
        1.1.2 Sunlight and maize growth
        1.1.3 Rainfall and maize growth
        1.1.4 Maize distribution and production in China and Hubei province
    1.2 Climatic suitability evaluation
    1.3 Maize yield potential and yield-gap analysis
    1.4 Research goals
2. Materials and methods
    2.1 Study area
    2.2 Meteorological stations selection and data collection
        2.2.1 Experimental design of maize for determination to parameters in climatic suitability calculations
    2.3 Maize growth stages determination
    2.4 Climatic suitability evaluation in maize
        2.4.1 Temperature
        2.4.2 Rainfall
        2.4.3 Sunshine
        2.4.4 Climatic suitability
    2.5 methods for climatic stress analysis
        2.5.1 Calculation for killing degree days (KDD, °Cd)
        2.5.2 Drought and waterlogging occurrence frequency
    2.6 maize yield potential simulation and yield gap analysis
        2.6.1. The Hybrid-Maize Model and the yield potential simulation
        2.6.2. Experimental yield and famers’ yields
        2.6.3 Yield gap calculation
    2.7 Data interpolation and statistical analysis
3. Results and discussion
    3.1 Variation in climatic resources and climatic stress in maize production zones
        3.1.1 Change in annual accumulated temperature over the years in different maize production region
        3.1.2 Change in killing degree days over the years in different maize production region
        3.1.3 Change in accumulated precipitation in different maize growth period
        3.1.4 Change in sunshine duration in different maize growth period
        3.1.5 Change in drought and waterlogging occurrence
    3.2 Climatic suitability and its trends in maize
        3.2.1 Temperature Suitability
        3.2.2 Rainfall suitability
        3.2.3 Sunshine suitability
        3.2.4 Climatic suitability
    3.3 Maize yield potential in maize production zones in Hubei Province
        3.3.1 Modeled and Rainfed yield Potential
        3.3.2 Experimental yields and farm yield
        3.3.3 Yield Gap Analysis
4. Conclusion and prospects
References
Acknowledgement



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